Re: [R-sig-Geo] variance-covariance matrix for GMerrorsar

2017-04-11 Thread Qiuhua Ma
Is this the link to the package? https://r-forge.r-project.org/R/?group_id=182 Chelsea On Tue, Apr 11, 2017 at 10:59 PM, Qiuhua Ma wrote: > Thanks for your quick reply. You are right. Marginal wtp should take into > account rho for spatial lag model. > > I still would like to use GMerrorsar. C

Re: [R-sig-Geo] variance-covariance matrix for GMerrorsar

2017-04-11 Thread Qiuhua Ma
Thanks for your quick reply. You are right. Marginal wtp should take into account rho for spatial lag model. I still would like to use GMerrorsar. Can you please send me the source package? Best, Chelsea On Tue, Apr 11, 2017 at 7:54 AM, Roger Bivand wrote: > On Tue, 11 Apr 2017, Qiuhua Ma wro

[R-sig-Geo] dnearneigh() from spdep: Points with the exact same location are not considered neighbours.

2017-04-11 Thread Maƫl Le Noc via R-sig-Geo
Dear List As I was working on a project, I realized that when I use dnearneigh from spdep, two (or more) points that have the exact same coordinates are not considered neighbours and thus are not linked (even when the lower bound is put to 0 or even to -1). See below for an example. (However this

[R-sig-Geo] best way to find contiguous chunks in a sparse space-time matrix

2017-04-11 Thread Waichler, Scott R
Hi, I have a space-time sparse grid layout where columns are locations and rows are time. In general, a location is missing data for some of its times. I need to subset the layout such that I can represent contiguous blocks of time, wherein for each block of time (rows), all of the selected lo

Re: [R-sig-Geo] variance-covariance matrix for GMerrorsar

2017-04-11 Thread Roger Bivand
On Tue, 11 Apr 2017, Qiuhua Ma wrote: Dear list, I want to use bootstrapping to derive confidence intervals for marginal wtp after GMerrorsar command. It works for stsls since covariance matrix is directly available. However, I cannot find covariance matrix for GMerrorsar. For example, the fo

Re: [R-sig-Geo] GEOSTAT Summer School for PhD students | 13-19 August 2017 | MEDILS Split

2017-04-11 Thread Tomislav Hengl
MEMO: This is to remind you that the registrations for GEOSTAT Summer School 13-19 August 2017 | MEDILS Split, will close on: - 15th of April 2017 To register for GEOSTAT visit: https://geostat-course.org/2017 PS: Current number of registrations: 44 (this summer school is limited to 55 parti